Loom-shuttle.



W. H. WILSON.

LOOM SHUTTLE.

APPLICATION FILED APR.18, 1911.

Patented Feb. 10, 19%

AWE Lr WiZZzm WZZYOTI/ P1- Ti .2 T1 I j 7 j ATTORNEYS UNITED STATES PATENT OFFICE.

WILLIAM HENRY WILSON, OF NEW BEDFORD, MASSACHUSETTS.

LOOM-SHUTTLE.

To all whom it may concern- Be it known that I, WILLIAM HENRY WIL- soN, a citizen of the United States, and a resident of New Bedford, in the county of Bristol and State of Massachusetts, have invented a new and Improved Loom-Shuttle, of which the following is a full, clear, and exact description.

The invention relates to loom shuttles such as shown and described in the application for Letters Patent of the United States, No. 987,524, granted to me March 21, 1911.

The object of the present invention is to provide a new and improved loom shuttle arranged to prevent the slack of the thread and consequent breaking thereof, and to prevent the thread from accidentally passing out of the eye at the end of the shuttle at the time the shuttle advances from the shuttle box toward the cloth, as at this time the thread is liable to curl up, and if such curled thread passes between the thread guide and the body of the shuttle, it is held sufficiently tight to break on further advance of the shuttle. In order to accomplish the desired result the shuttle is provided with a threadretaining device adjacent to the throat of the shuttle body, the said retaining device having members extending from opposite sides and overlapping each other to permit the entrance of a thread but to prevent return movement thereof. Use is also made of a transverse thread guide provided at its outer or delivery end with a cross bar having its free end extending into the body of the shuttle to prevent the thread from passing between the exterior surface of the thread guide and the wall of the opening, into which fits the thread guide.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a plan view of the delivery end of the improved loom shuttle; Fig. 2 is a side elevation of the same; Fig. 3 is a cross section of the same on the line 3-3 of Fig. 1; Fig. 4 is a plan view of the de livery end of the loom shuttle, part being Specification of Letters Patent.

Application filed April 18, 1911.

Patented Feb. 10, 1914.

Serial No. 621,739.

in section and the thread-retaining device being removed; Fig. 5 is a sectional plan view of the delivery end of the loom shuttle, the section being on the line 5-5 of Fig. 2; Fig. 6 is a bottom plan view of the thread guide; Fig. 7 is a cross section of the body of the shuttle and showing a moditied form of the thread-retaining device; Fig. 8 is a cross section of another modified form of the threadretaining device, the section being on the line 88 of Fig. 9; and Fig. 9 is a plan view of the same.

The body A of the shuttle is provided with the usual elongated spindle opening B in which extends the spindle C carrying the bobbin D, from which unwinds the thread D adapted to pass through a delivery eye in the side of the shuttle body A, as hereinafter more full explained. In the top of the shuttle body A adjacent the delivery end is a substantially vertical opening E extending about half way through the shuttle body and connected to the recess B by a throat F. The upper end of the opening E and the sides of the throat F may be beveled or cut away so as to avoid sharp edges which might cut or sever the thread.

Extending transversely through the shuttle body A is a substantially cylindrical passage G of somewhat less diameter than the opening E and communicating with the lower end of the latter. A slot H extends from the opening E diagonally forward to one side of the shuttle body A, and extends downwardly in depth to approximately the center of the transverse passage G. A substantially horizontal slot I connects the lower or innermost portion of the slot H with the transverse passage G along approximately one half the length of the latter.

In threading the shuttle, the thread D is dropped through the throat F, the opening E, the slot H, the slot- I and is then brought into the transverse passage G so that the thread extends out through one end of the latter, as plainly indicated in Fig. 2. For preventing a loop in the thread from rising or ballooning out through the slot H, use is made of a thread-retaining device ar- N N the thread D ranged within the opening E and so Constructed as to facilitate the entrance of the thread but to prevent its return movement. The thread-retaining device may be of various forms, asindicated in Figs. 1, 3, 7, 8 and 9. The thread-retaining means shown in Figs. 1 and 3, consist essentially of a bottom plate J from which rise the sides J, J terminating in top members J J extending inwardly and overlapping each other, sufiicient space being had between the members for the passage of the thread D between the said members J J into the thread-retaining device. The front edges of the top members J J are slightly beveled, as plainly indicated in Fig. 1, and the rear portions of the said top members J J do not overlap adjacent the inner end of the slot H, so that the thread D can readily pass between the members J J and into the slot H when threading the shuttle. A transversely-extending pin K passes through the shuttle body A and through the sides J, J of the thread-retaining device, the pin K extending over the bottom plate J so as to normally hold the thread-retaining device in position in the opening E with the bottom plate J resting on the bottom of the said opening.

In the modified form of the retaining de vice shown in Fig. 7, use is made of two pins L and L, extending vertically in the opening E and passing into recesses formed in the body A, to support the pins in pos1- tion on the body A. The upper ends of the pins L and L are provided with top members L L which overlap each other and are spaced apart for the passage of the thread D, similar to the top plates J J above described. A dependin arm L is attached to the pin L immediately below the top member L and the forward edge of the said arm L is provided with a cross bar L extending close to the other pin L so as to form a guide for the thread D.

In the modified form of the retaining device shown in Figs. 8 and 9, use is made of a bottom plate N, from which rise the sides N, N terminating at the top in overlapping top members N N, of which the member N is provided at its forward end with a projecting tongue N passing through an opening N in the side N to guide the thread into the retaining device, that is, under the top member N"=. The top member N is also provided at its outer edge with an outwardly and downwardly curved flange N for engagement with the side of the shuttle body A to assist in holding the retaining device in place on the shuttle body.

It is understood that by having the over lapping top members J J or L L or is prevented from rising vertically out of the retaining device and the slot H, but the thread canbe readily passed into said retaining device and slot H as before explained.

Within the transverse passa e G is mounted a guiding device 0, pre erably in the form of a tube or a barrel, fitting closely within the passage G and removable lengthwise therefrom. The guiding device is preferably formed from a single piece of sheet metal so cut and stamped as to form a top opening 0 from which leads a side opening 0 into a transversely-extending bottom slot 0 to permit the thread to pass from the slot I into the tube and out of the same at one end thereof. Across the exit end of the guiding device 0 extends a cross bar 0 reaching beyond the wall of the opening G and terminating at its free end in a lug or point 0 driven into and embedded in the side of the shuttle body A, so that the thread D, passing through the exit end of the guiding device 0 and curling up at the time the shuttle advances from the shuttle box toward the cloth, is prevented from passing between the exterior surface of the tubular guiding device 0 and the wall of the openin G, and hence the thread is not liable to be eld sufficiently tight to break on the further advance of the shuttle.

It is understood that in threading the shuttle it is merely necessary to drop the thread through the slot H, draw it back through the slot I, the thread in doing so automatically slipping between the top members J J 4 of the retaining device, the thread finally passing from the slot I into the tubular thread guide 0 and out of the exit end thereof over the cross bar 0*. The thread cannot become unthreaded and the thread cannot become accidentally displaced or caught between the tubular thread guide 0 and the wall of the opening E, and hence the shuttle does not fail to operate properly,

Having thus described claim as new ters Patent:

A loom shuttle having a body provided with a transverse opening, and a tubular thread guide fitting into the said opening and provided with a longitudinal slot, and with a cross bar extending across the outside of its exit end, said cross bar being in a straight line below the axis of said thread guide and extending across and completely closing the respective end of the said slot, the said cross bar having its free end provided with an angular extremity at a point beyond the side of the thread guide, and bent inwardly in a direction parallel to the axis of the thread guide, said bent extremity being adapted to be driven into the surface of the shuttle body in a direction my invention, I and desire to secure by Letparallel, to the axis of its transverse openname to this specification in the presence of mg whereby the said cross bar may be two subscrlbing Witnesses. pressed tightly against the exterior surface of the shuttle body adjacent its opening and WILLIAM HENRY WILSON 5 thus prevent the thread from becoming Witnesses:

caught and broken. HENRY E. WooDWARn,

In testimony whereof I have signed my HENRY S. ABRAMs.

Copies 0! this patent may be obtained for five cents each, by addressing the Commluloner o! Patentl, Washington, D. 0. 

